Control mechanism for dispensing apparatus



Nov. 18, 1947. c. R. MANNING CONTROL MECHANISM FOR DISPENSING APPARATUS8 Sheets-Sheet 1 Filed Aug. 22, 1942 ATTORNEY Nov. '18, 1947. c. R.MANNING 2,431,058

CONTROL MECHANISM FOR DISPENSING APPARATUS Filed Aug. 22, 1942 v 8Sheets-Sheet a Flt-3.7.

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NOV. 18, 1947. I c, MANmNG 2,431,058

CONTROL MECHANISM FOR DISPENSING APPARATUS Filed Aug. 22, 1942 8Sheets-Sheet 6 Z EIVTOR. BY z/rzziw 2 ATTORNEY.

Nov. 18, 1947. c. R. MANNING 5 comaoz, MECHANISM FOR DISPENSINGAPPARATUS Filed Aug. 22, 1942 a Sheets-Sheet 7 Rag Lrwu

% i NVENTOR ATTORNEY.

Nov. 18, 1947.

C. R. MANNING CONTROL MECHANISM FOR DISPENSING APPARATUS Filed Aug. 22,1942 8 Sheets-Sheet 8 ATTORNEY.

Patented Nov. 18, 1947 CONTROL MECHANISM FOR DISPENSENG APPARATUSClarence R. Manning, Vestal, N. Y., assignor to International BusinessMachines (Jorporation, New York, N. Y., a corporation of New YorkApplication August 22, 1942, Serial No. 455,765

15 Claims.

This invention relates to record controlled mechanism for selectivelyoperating dispensing apparatus and in particular apparatus fordispensing liquids to combine various ingredients in the preparation offormulae.

In carrying out the broad object of the invention, a record card isprovided for each formula that it is desired to prepare, and the recordcard is provided with designations in the form of perforations that bytheir number and location indicate the ingredients and their quantitiesrequired for the related formula. These record cards are sensed singly,and the data contained therein is setup on a relay system which,operating in conjunction with inlet valves and dispensing apparatus,permit the required ingredients in the classified amounts to bewithdrawn from supply reservoirs and measured in separate receptacles,where they are separately retained. When all the required ingredientshave been drawn oil from the reservoirs, the record card is sensed asecond time and a comparison is made between the data on the card andthe measured quantities of the selected ingredients. This constitutes achecking or verifying to insure that the proper ingredients in theproper quantities have been drawn oif. If the comparison issatisfactory, valve mechanism on the Various receptacles are controlledtopermit the selected ingredients to flow together or discharge into acommon receptacle.

It is accordingly among the more particular objects'of the invention toprovide the mechanism for carrying out the several steps of record cardsensing, control of the dispensing apparatus or selection of ingredientsand quantities thereof, the checking of the selected ingredients, andthe ultimate discharge thereof into a common receptacle.

Other objects of the invention will be pointed out in the followingdescription and claims and illustrated in the accompanying drawings,which disclose, by way of example, the principle of the invention andthe best mode, which has been contemplated, of applying that principle.

In the drawings:

Fig. 1 is a sectional view of the essential elements of the record cardfeeding and sensing devices.

Fig. 2 is a view looking in the same direction as Fig. 1 showing thedrive gearing and clutch controls for the card feeding and sensingmechanism.

Fig. 3 is a detail of a timing commutator.

Fig. 4 is a fragment of a record card showing 2 the manner in which theingredients and their quantities are designated.

Fig. 5 is a timing chart of certain of the electrical circuit closingdevices,

Fig. 6 is a chart showing the arrangement of the circuit diagram figuresto indicate the order in which they are to be placed.

Fig. 7 is a diagrammatic representation of a section of the dispenserapparatus.

Figs. 8, 8a, 8b, 8c and 8d taken together and arranged in the orderindicated in Fig. 6 constitute a wiring diagram of the dispensingapparatus and the control mechanism sufficient to 11- lustrate andexplain the operation of the device. By duplicating Figs. 8a, 8b, 8c and8d and adding them to the existing figures as indicated in Fig. 6, thecircuit will be suitable for a. device of greater capacity.

The record card Referring to Fig. 4, there is shown a form of well knownrecord card 25 as used for statistical purposes which is provided with anumber of vertical columns and a number of horizontal rows, the latterof which are numbered in ac cordance with the digits. A perforation inthe vertical column represents a value corresponding to the digitrelated to the horizontal line. Thus, the perforation in column Irepresents '2 and the perforation in column 2 represents a 5. Forrecordingfractions, a form of coding is employed wherein for thefraction 4 a 2'perforation is employed, for A: a 5 perforation, and foran 8 perforation, so that with the card as arranged in Fig. 4 the sevendifferent ingredients indicated are indicated by the perforations Whoseinterpretation is given at the bottom of the figure.

In accordance with the arrangement of the present device, it is requiredthat a zero representing perforation be made in those columns of thevarious ingredient fields in which there is no significant digit orfraction representing the perforation. Thus, for the card shown in Fig.4, the formula X requires neither of the ingredients IV or V, so thatthe two columns of each of these two fields are perforated in the zeroposition. Also, in the fields designated 2 and l, the zeros are punchedas shown.

The dispensing apparatus In Fig. 7 is shown the dispensing apparatuswhich the record card in Fig. 4 is designed to control, In general, itcomprises a reservoir or supply hopper generally designated; "I, ofwhich there is one for each possible ingredient. From the reservoir IDthe feed line H extends to and has connection with a plurality of whatmay be termed measuring tubes designated l2 in which the ingredients aresegregated and momentarily retained. The connection is through valves I3which are operated by solenoids designated l4. Energization of solenoidl4 will open valve l3 and permit liquid to flow into the tube l2 untilthe solenoid is deenergized. Each tube l2 has a connection IS in acommon line l6 extending to a receptacle II. In each line there is avalve l8 operated by a solenoid IS. The valve l3 may be termed an intakevalve and the valve l8 may be termed a discharge valve, which is open aslong as solenoid I9 i energized and closed at all other times. Withineach tube 12 is a float to which is secured a stem 2! which carries acontact slider 22 at its upper extremity. This slider makes contactbetween a group of contact segments 23 on one side and a grou of contactsegments 24 On the opposite side. The arrangement of these contacts issuch that for any quantity of liquid in the tube, the slider 22 will bein the position to indicate the amount on the contact segments 23 and 24of which the former indicate whole ounces and the latter quarter ounces.

In the apparatus in which the present invention is used, the tubes l2are all alike and each has a capacity of 10 ounces so that, where morethan 10 ounces are required, a number of tubes (2 is required. Thus, forthe ingredient I (Fig. 4) where 25% ounces are required, 5% ounces willbe measured in the right hand tube I2, 10 ounces in the next tube andthe other 10 ounces in the third tube. The second and third tubes, whenutilized, measure only the full 10 ounces and their sliders 22 cooperatewith contact segments 23 and 24 located in only the highest or fullposition of the tube.

As indicated in dotted outline in Fig. '7, a sec ond receptacle S maycontain ingredient II which, through similar connections, will flow intoanother set of tubes l2 which in turn also have connection to the commonline l6 for discharge into the common receptacle H, and thus for each ofthe other ingredients indicated in Fig, 4 there is a reservoir l0 andone, two or three tubes l2 depending on the highest possible quantity ofany ingredient required. For example, for ingredient III (Fig. 4), onlytwo columns are set aside which indicates that the greatest possibleamount of this ingredient called for would be 9% ounces, in which case asingle tube l2 with the graduated segments 23 and 24 would besufficient, and for this ingredient the second and third 10 ouncemeasuring tubes would not be required.

Card feeding and sensing mechanism Referring to Fig. l, the record cards25 are placed in a hopper 25 from the bottom of which they are fedsingly by a picker 2'! to a. pair of feed rolls 28 which advance it to asecond pair of feed rolls 29, and then to a third pair of rolls 30 fromwhich the card drops into a pocket 3!. Between the rolls 28 and 29 is arow of sensing brushes designated SB which sense the rows of Perforatedpositions in the order 9, 8, '7, etc. as the card passes the brushes,With the brush SB making contact through the hole in the card with acommon contact roller 32, Similarly, as the card later passes a secondset of so-called checking brushes CB, contact is made by these brushesthrough the perforations with a contact roller 33.

At each brush station is provided the usual card levers which closetheir respective card lever contacts designated CLI and CL2. At thehopper 28 there is also a so-called magazine card lever designated 34which maintains a pair of contacts ML closed as long as there are cardsin the suppl hopper. In the operation of the machine there is what maybe termed the starting position. During a cycle of operations now tofollow, the card is advanced past the brushes SB to the correspondingposition with respect to the brushes CB, and during such transmit theperforated data is sensed by the brushes SB, The cards wait in thisposition while the several tubes l2 receive the proper quantities aswill be explained and, when all have done so, the first card is advancedpast the brushes CB into the hopper 3|. During the passage of the card,its perforations are again read and a comparison is made with the tubesl2 to determine whether the proper amounts are in fact in the tubes.

While the first card is passing the brushes SB, the second card isbrought from the magazine up to the brushes SB and waits in thisposition until the first card has passed the brushes CB. If thecomparing is correct, the metering tubes used for that particularformula are allowed to empty. While they are emptied the second cardpasses the brushes SB and the storage relays are set up for that card.In this way no time is lost for the setup of each card. As a second cardpasses the brushes SB, the third card moves from the magazine up tothese brushes, so that after the first card has been sensed by thebrushes CB, following which the tubes I2 are evacuated, the device is inreadiness to repeat the operations sensing the next following card.

In Fig. 2 is shown the driving mechanism for the card feed rollers andpicker mechanism, wherein a shaft 35 is in constant rotation, beingdriven from any suitable source of power, such as an electric motor.Shaft 35 carries a gear 38 driving a gear 31 which in turn drives a gear38 loosely mounted on a shaft 39. Integral with gear 38 is a clutchdriving element 40 in whose plane lies a clutch dog 4i secured to aclutch arm 42 fixed on shaft'39. Energization of magnet SM will releasedog 4i for engagement with driving element 40, so that shaft 39 willrotate and the gear 43 thereon will drive the gear 44 which is securedto the upper roller 28 which in turn has pinion connection with thelower gear, so that the two rollers 28 rotate together. The shaft 39(Fig. 1) has an eccentric cam operating an eccentric strap 45 whichrocks a rod 46 upon which is the arm 47 which through teeth on its upperextremity reciprocates the picker knife 21. Through the connectionstraced, it will be seen that, when magnet SM is energized, shaft 39makes a revolution during which the picker 2! and pair of feed rolls 28are operated. The gear 31 through the gear 4! drives a gear 48 on theend of the upper roller 30 which also has pinion connection with thelower roller 30, so that these two rollers are in constant motion. Thegear 49 drives the gear 50 and a clutch driving element 5| to which agear 52 may be coupled for rotation through a clutch dog 53 uponenergization of a magnet CM.

When coupling is so effected, the gear 52 drives a gear 54 on the shaftof the intermediate roller 39 so that, when magnet CM is energized, therollers 29 rotate. As will be explained in connection with the circuitdiagram, the magnetCM-is energized whenever the magnet SM is energized.As

' letter.

seen from Fig. 1, it is necessary to rotate both rollers 28 and 29 toadvance the card past brushes SB; To advance the card past the brushesCB, it is only necessary to rotate the rollers 29 by energing magnet CM,rollers 30 being in constant motion.

On a shaft 55 driven from the constantly running gear 38 are a number ofthe contact operating cams controlling contacts which in the circuitdiagram are prefixed CR, Also on shaft 39 are contact operating camswhich control contacts prefixed S, and these operate only when theclutch magnet SM is operated and a card is passing the brushes SB.Likewise, a shaft 56 is provided and driven from the gear 52, upon whichshaft are cams for operating contacts prefixed CH which accordinglyoperate only when magnet CM has been energized and while the card ispassing the brushes CB. On the constantly running shaft 55 there is anumber of commutator devices termed femitters, of which one is shown inFig. 3 comprising a brush 51 which has connection with a ring as show-n,and which also makes contact in succession with segments designated 58which are numbered 9 to zero and which are contacted by the brush 5'! atthe time the correspondingly numbered positions on the record cards aresensed by thebrushes SB or CB. The timing of the various contact devicesis shown in Fig. 5 wherein one cycle or revolution of the shafts 39, 55and 58 is indicated.

Circuit diagram The complete operation of the machine will now bedescribed in connection with the circuit diagram and the variousoperations will be explained in the order in which they take place. Tofacilitate the understanding of the various electrical devices, therelay magnets, of which a number are employed, have been designated withthe letter R followed by a numeral. The contacts controlled by the relaymagnets are designated with the same reference followed by a lower caseThus, RI may designate a magnet, and Rla, Rib designate contactscontrolled thereby.

In most instances, the contacts controlled by the magnets are shownadjacent thereto. In several cases, where for the sake of simplicity ofthe wiring connections the contacts have not been drawn adjacent thecontrolling magnets, the magnets are shown in dotted outline adjacentthe contacts which together with the manner of designating the same willserve to make the relationship clear.

Preliminary operations.-'-With cards placed in the feed magazine, therun-in key is depressed to close contacts 59 (Fig. 8). This completes acircuit at the time constantly running contacts CRI close, which istraceable from negative side of line 60, through contacts CRI, wire BI,contacts 59, relay contacts Rib, wire 62, relay magnet R2, andcardreading clutch magnet SM parallel therewith to positive side of line65. Relay magnet/R2 closes its contacts R211 to provide a holdingcircuit from line 66 to normally closed contacts S2, contacts R2a,magnets R2 and SM to line 65. The contacts S2 open during the cycle ofoperations initiated by magnet SM to break the holding circuit andenable declutching 0f the card feeding mechanism at the end of therevolution, during which a card was advanced from the hop per up to thesensing brushes SB.

It is pointed out that at the very start the clutch magnet CM is alsoenergized and the intermediate feed rollers 29 rotated, but such op.

6 erati'on at this time has no effect. The circuit for energizing magnetCM at this time is traceable from negative side of line 60, in seriesthrough a chain of normally closed contacts R311, contacts R40, a relaymagnet R5, to line 65. As soon as current is put on the lines 60 and 65,the magnet R5 becomes energized and closes its con.- tacts R5a. Thus, acircuit. is completed from line 60, contacts CRI, contacts R5a, normallyclosed contacts R4d, magnet CM to line 65. Parallel with magnet CM is arelay magnet R6 which closes its contacts RGa to provide a holdingcircuit for itself and magnet CM through contacts CHI. The magnet R6also closes a pair of contacts R61) to set up a circuit from line 60,through contacts RBo, relay magnet R4, to line 65. Macnet R4 in turnopens its contacts R40 so that magnet R5 becomes deenergized and at thesame time closes its contacts Rta to establish a holding circuit fromline 65, magnet R4, contacts Rla, and the chain of contacts R3a to line60.

Reading the first card by brushes SB.-The run-in key is now operated asecond time, closing contacts 59 as before, the clutch magnet SM isenergized to advance the card past the brushes SB. As explained above,it is also necessary to operate the clutch magnet CM in order to advancea card up to the brushes CB, so that with the closure of contacts R2b acircuit is also completed to energize the magnet CM. 'It may be notedfrom the circuits traced that, whenever-the magnet SM is energizedtogether with itsparallel relay R2, the magnets CM and R6 are alsonecessarily energized through parallel circuits Controlled by thecontacts R2b.

Entering the card reading.-As the card passes the brushes SB, it closesthe card lever contacts CLI to complete a circuit from line 60, contactsCL, CR1, relay magnet RI to line 65. The magnet RI closes its contactsRM to provide a holding circuit for the relay magnet which is.maintained energized as long as the card continues to pass the brushesSB. Magnet RI closesa pair of contacts RIc which supply current to thecontact roll of the brushes SB through the following circuit: line 60,circuit breaker contacts CRI I, CRI2, which make and break the circuitfor each hole position in the card, contacts S3, RIc, wire 66, to thecontact roller 32. From the contact roll 32 the circuit proceeds throughthe perforations in the record card, the time of completion of thecircuit depending upon the differential location of the perforation.

Entering the fractional amount.Considering the circuits completedthrough the column of the card containing a "fractional designationwhich would be either zero, 2, 5, or 8, the circuitcontinues fromcontact roller 32, brush SB sensing the fractional column, a connectionindicated at 6'! (Fig. 8) which extends to Fig. 8a, to a wire 68, thencethrough one of the contacts Rla, RQa, RIZa, or Rifia, depending upon thevalue of the perforation, thence through one of the wires 59,

through a winding of one of three magnets RI'I,"

RI 8 0r RIB, wire Ill, to positive side of line 65. The contacts R'Ia,R9a, Rl2a, RI5a are closed by their respective magnets, shown below themin Fig. So, at the times in the cycle corresponding to the value of theperforations 0, 2, 5, and 8. These magnets are connected to contactsegments 58 which are traversed by the brush 5! (see Fig.

3) in such manner that the row of magnets R16,

RI 5, etc. to R1 are energized in succession as the perforationreceiving positions 9, 8, 7, etc. are sensed.

The energizing circuit is traceable from positive side of line 65, wireH, in parallel through the magnets Rl'l, RIG, segments 58, brush 51,common conductor 12, wire 13, cam contacts 54, circuit breaker contactsCRI3, GR in parallel, cam contacts CH4 to negative side of line 60. Itis to be recalled that during this cycle both the sensing and checkingclutch magnets have been energized, so that both the CH, S and CR camcontacts are in operation, so that during the period the card is passingthe brushes SB, both contacts S4 and C4 are closed. Each of the magnetsRll, RH! and RIS close a pair of contacts suifixed a to provide aholding circuit for the magnets traceable from line 65, wire 10, theupper winding of the magnets, its 0. contacts, wire 14, and cam contactsSI to line 60.

From examination of the coding for the fractional /4 ouncerepresentation in Fig. 4 and from the connections through the relaymagnet contacts R111, R912, Rl2a and Rl5a, when a 2 perforationrepresenting A; ounce is sensed, magnets R18 and RH are energized. Whena 5 perforation representing a /2 ounce is sensed, the magnet R19 aloneis energized; when an 8 hole representing n ounce is sensed, magnet Rl8alone is energized, and when a zero perforation indicating no ounce issensed, the magnet RI! is energized, and the setting thereof will beretained until contacts Si open just prior to the sensing of the nextcard by the brushes SB.

Entering the units order digit amount-Com sidering now the sensing ofthe units order column, the circuit from the contact roller 32 extendsthrough the perforations in the related column to the brush SB andthence through the wire (Fig. 8), to the common wire 16, asindicated inFig. 8a. The wire 16 is connected to contacts Rlb to Hi 61) which, asalready explained, flows in succession under control of the emitterbrush 51. These contacts Rlb to Rlib are connected through wiresgenerally designated H to the 4 relay magnets R20, R2l, R22, and R23 toenergize them in combination for the ten digits sensed. For example,assuming a perforation in the 1 position of the card column, then at the1 time in the cycle the contacts R8?) are closed. The circuit from thesensing brush extends through connection 15, wire 15, the 2 contactsRBb, to relay magnets R22 and R23 in parallel, and thence through wire18 to line 65. These contacts close their a contacts to provide aholding circuit through the cam contacts SI in the same manner as thefraction receiving magnets Rl'l to RIS.

Tracing of the circuits for the various digits would show that sensingof a zero in the units order column will energize magnet R20, a 1 willenergize magnets R22 and R23, a 2 will energize magnets 2| and R23, a 3will energize magnets R2! and R22, 4 will energize magnets R20 and R23,5 will energize magnets R20 and R22, 6 will energize magnets R20 andR2l, '7 will energize magnet 23, and 8 will energize magnet R22 and 9will energize magnet R2l.

Entering the tens order digit am0unt.From the brush SB sensing the tensorder column, a connection IS (Fig. 8a) extends (Fig. 80) to a wire 80,contacts R24a, R25a and R2611, wire 8|, to relay magnets R21, R28, wire82, to line 65. The magnets R24, R25 and R26 are energized in successionthrough an emitter having segments 58 and brush 51, and common conductor12 in the same manner as the magnets R1 to RIG, the timing being suchthat the magnets are energized at 553 the zero, 1 and 2 times. ()nlythree magnets are provided as in the present machine, the tens column isonly utilized in the zero, 1 and 2 hole positions. Again, as for thefractions and the units digits, a combination setting is eiTected on therelay magnets R2! and R28 such that, when a zero hole is sensed, magnetR28 alone is energized; when a 1 hole is sensed, magnet R21 isenergized. and when a 2 hole is sensed, both magnets R21 and R28 areenergized. Each will close its a contacts to set up a holding circuitthrough cam contacts Sla whose timing is the same as the contacts SI.Thus, after the card has passed the brushes 83, a relay setting willhave been made in accordance with the values sensed.

For example, for ingredient I of Fig. 4, the value 25 /4 ounces willhave resulted in energizetion of the following relay magnets: R21 andR20 for the tens digit 2, R20 and R22 for the units digit 5, and R53 andRIB for the fraction V4. At the end of a cycle, the machine comes torest, the card in readiness to pass the checking brushes CB.

Measuring the liquid quantities The operator now presses the start key,concurrently closing a plurality of contacts (Figs. 8b and 8d), of whichthere is one for each tube l2. This will initiate the feeding of theingredient to the tubes which are to receive the same and feeding willcontinue until the amount therein reaches the proper level, at whichtime certain connections will be established under control of thecontact slider 22, the contact segments 23 and 24 of the tube. andcircuit connections partially set up by the aloredescribed amountrepresenting relays to terminate the measuring operation. Specifically,for the tube shown in Fig. 82), when this tube has received 5% ounces inaccordance with the example shown in Fig. 4, the required quantity willhave been measured. Upon closure of contacts 83 (Fig. 8b), a circuit iscompleted from negative side of line 60, a start relay magnet R28,contacts 83. wire 34 (Fig. 8a), contacts R2ib, R221), or R232), if oneof these is closed, wire ll (Fig. 8b), contacts R3lla of a stop relaymagnet R30, wire 86, to positive side of line 65.

A circuit ma also be completed upon closure of contacts 83 traceablefrom line 60 (Fig. 81)), magnet R29, contacts 83, wire 84 (Fig. 8a),downwardly through a wire 8'7, contacts Rllb, a wire 88. contacts R202),if these are closed, wire 8! (Fig. 81)), contacts MM and wire 86 to lineSI. Analysis of the circuits just traced will show that relay magnet R28is energized, ii a significant digit is set up for the units order or ifa zero is set up for the units order, and the zero is not set up in thefractional order. If a zero is set up in both the units digit and thefraction order. the relay magnet R29 is not energized and the relatedtube remains inactive.

Magnet R29 closes its contacts 12.29:: to provide a holding circuit fromline 60, magnet R20, contacts R29c, stop relay contacts R300, wire 00,to line 65. It also closes contacts R29!) to complete a circuit fromline 65, wire 85, contacts R29b, relay magnet R3i, a contact segment23a, slider 22, contact segment 22a, wire 89, to line 50. The slider 22makes electrical connection between contact segments 23a and 24a onlywhen the float in the tube is in its empty indicating position, so thatunless the tube is empty, the circuit just traced cannot be completed.Magnet RSI closes its contacts R3 1 a to provide a holding circuit fromline 60, contacts R3la, magnet RII, contact R2912, which are heldclosed, wire 85, to line 65. The magnet also closes its contacts R3lb,completing a circuit from line 65, wire 86, intake valve solenoid M,stop relay contacts R30b, contacts R3lb; to line 60.

As a result, the intake valve I3 (Fig. 7) is Open and ingredient Icommences to flow into the tube l2. This flow will continue until magnetR30 is energized to break the contact R301). The manner in which this isdone will now be explained.

When the float has raised contact slider 22 to the ounce level for theexample chosen, it makes electrical contact between the 5 segment 24 andthe A; segment 23 opposite and at such time a circuit is completed whichis traceable as follows: from line 65 (Fig. 8b), wire 86, stop relaymagnet R30, wire 90 (Fig. 8a), normal y closed contacts R32a, Wire 9|,upper contacts R23c, lower contacts R22c now closed, upper contactsR2lc, lower contacts R200, now closed, a pair of contacts R33a, to the 5wire of a group of wires designated 92 (Fig. 8b), the 5 segment 24,slider 22, the 2; ounce segment 23 to wire 93 (Fig. 8a) lower contactRlBc now closed (due to ,4; ounce entry), lower contacts -Rlllc alsoclosed, upper normally closed contacts R321), to line 60. Thus, when theslider reaches the level corresponding to the setting of the combinedunits and fraction value, a circuit is completed through stop relaymagnet R30 which opens its contacts R301) to deenergize the intakesolenoid l4, so'that the intake valve automatically closes. It will, ofcourse, be understood that similar circuits are completed through otherlike settings and valves at times depending on when the slider reachesthe desired slide.

In tracing the circuit, it was mentioned that it extended throughcontacts R33a (Fig. 8a) A number of contacts R33a is shown, and duringthe period that the intake valve functions, these contactsare allclosed. Their closure is effected in the following manner: Thecontrolling magnets -R33 are shown in the lower part of Fig. 8a, and

each constitute a magnet core with two separate windings thereon woundso that energization of either winding will operate the relatedcontacts. Normally, the upper winding of each magnet R33 is energized sothat the contacts R330 are closed. This circuit can be traced from line60, contacts CHIa, R320, all of the upper windings of the magnets R33'in parallel to line 6-5. For the two so-called 10 ounc tubes, whichtogetherare to measure the ounces tobe measured for the example chosen,start circuit for the intake valve solenoid is completed in a similarmanner to that already explained. These circuits will be briefly. tracedin connection with Figs. 8c and 8d, where similar parts will beidentified by the same reference characters. In Fig. 8d closure of theupper contacts will complete a circuit through the start relay magnetR29; from line 60', the magnet R29; contacts 83, wire 9'4 (Fig. 8c),contacts R21?) (now closed), wire 95 (Fig. 8d), stop relay contactsR30a, to line 65. Concurrently, the lower start relay magnet R29 isenergized through a circuit traceable from line 60, magnet R29, contacts83, wire 95 (Fig. 8c), contacts R210, R281) (both closed), wire 91'(Fig. 811), contacts R3011 to line 65 as before.

Inspection will show that, if the tens digit, setting is 1', only theupper relay magnet R29 (Fig. 8a) is energized and, if the setting is 2,then both relay magnets R29 are energized, while if the segment is zero,neither is energized. As before", contacts R29a close to provide aholding circuit and time of its related intake valve solenoid I4 which,

when energized, is held through the stop relay contacts R30b and theliquid will flow into the tube until the stop relay R30 is energized.

The stop circuit is traceable as followsfor the upper tube of Fig. 8d:from line 65, wire 86, magnet R30, Wire 98 (Fig. 8c) normally closedupper.

contacts R320, wire 99, closedcontacts R21d, wire I00 (Fig. 8d), contactsegment 24b, slider 22 in the 10 ounce registering position, contact23b, wire l0! (Fig. 8c) upper normally closed contacts R32e, to line 60.Thus, when the slider reaches the full capacity indicating position,relay magnet R30 is energized and the intake valve solenoid RM isdeenergized. In a. somewhat similar manner the stop relay magnet circuitfor th lower tube in Fig. 8d is traceable from line 65, wire 86, relaymagnet R30, wire I02 (Fig. 8c), normally closed upper relay contactsR32d, wire I03, contacts R2 lc, R280, wire I03 (Fig. 8d) contacts 241),slider 22, segment 23b, wire 104 (Fig. upper normally closed contactsR32f, to line 60. Thus, also for the two tubes which receive 10 ounceportions of the total quantity, the intake valve cannot, be operatedunless the tube is initially empty and the intake valve is closed whenthe position of the tube slider corresponds tothe settingon the relaysystem.

In parallel with each of the intake valve sole- I noids l4 (Figs. 8d andSe) is arelay magnet R3, each of which, when energized, opens a pair ofcontacts R3a (Fig. 8).

, As explained at the outset, the contacts R311 normally establish acircuit through relay magnet R4 and its contacts Rla, this circuitfbeingset up through the initial operation of the check clutch CM. When anysolenoid is energized, it opens its contacts R3a, so that the holdingcircuit for relay magnet R4 is broken, permitting its contacts RM andRdc to again close, while the liquid is entering the tubes. As each tubereceives its required amount, its related contacts R311 close and, whenall are closed indicating all the intake valves have shut, a circuit iscompleted from line 60 (Fig. 8) to the contacts R3a in series, contactsR40, relay magnet R5 to line 65. Magnet R4" closes its contacts Rla, sothat at the appropriate time in the cycle when cam contacts CRI close, acircuit is completed from line 60, contacts CRl, contacts R5a, Rdd,magnets RB and CM in parallel to line.65. Magnet R0 as" before closesits contacts R61) to energize relay magnet R4 and R32 (Fig. 8a) isenergized so that the several related contacts are shifted from thepositions shown in the circuit diagram. Also, asthe card is passing thebrushes, the card lever contacts GL2 (Fig. 8) close to energize t herelay magnet R34 which closes its contacts R34a, through which currentis supplied to the checking brush contact roller, through a. circuittraceable from line 60 (Fig. 8)., contacts CRII, CHI2, contacts CH2,contacts 34a, wire I05 to the contact roller 33.

As the fractional order of the card traverses the brush CB, the circuitcontinues through the brush CD the connection I06 (Fig. 8a), wire I01,lower contacts RISd (now closed), lower contacts RIBd now closed, wireI08, 3. pair of con-, tacts R33b related to the 2 magnet R33, thencethrough relay magnet R35, to line 65. Magnet R35 closes its contactsR35a to provide a holding circuit from line 65, lower winding of magnetR35, contacts R35a, contacts SIb, to line 60.

The completion of this circuit is an indication that the perforationssensed by the checking brushes CB correspond to a relay setting obtainedfrom the first set of brushes SB. Closure of the contacts R33b in thecircuit just traced is brought about through emitter comprising segments58 wired to the second winding of each of the magnets R33, 2. brush 5'!in the common conductor I2. The brush contacts the segments 58 insuccession as the correspondingly numbered card positions are at thesensing brush CB, so that at the time the 2 position is sensed, the 2magnet R33 is energized and its contacts R33?) are closed. The circuitthrough the magnet R33 is traceable from line 60 (Fig. 8a), contactsCH4, CRI3, CRI4, a wire I09, common strip 12, brush ST, segment 58 inthe 2 position, lower winding of magnet R33 to line 65.

Checking for the units order.-As the column of the card containing theunits digit of the amount traverses the brushes CB, a circuit istraceable through the perforation representing the digit 5 (for theexample chosen) as follows: line 60 (Fig. 8), contacts CRI I, CRI2, CH2,R34a, wire I05, checking contact roller 33, brush CB, connecting wire II (Fig. 8a) lower contacts R322) now closed, lower contacts RISc nowclosed, lower contacts RI8c now closed, wire 93 (Fig. 8b segment 23,slider 22, and segment 24 set at the 5 wire 92 (Fig. 8a) the 5 contactsR33a which are closed at the time the 5 perforation in the card columnis closed. lower contacts R200, upper contacts R2Ic, lower contactsR220, upper contacts R230, wire SI, lower contacts R3211, relay magnetR36, to line 65. Magnet R36 closes its contacts R36a which provide aholding circuit traceable from line 60, contacts R36a. wire 9|, lowercontacts R32a, magnet R36, to line 65.

It is to be noted that the checking circuit traced through the 5perforation required the measuring slider 22 of the tube to be at theproper fractional position in addition to being at the proper digitalposition, and that the checking of the proper fractional position wasindirectly checked through the previously traced checking circuit inwhich the fractional perforation was compared with the fractional relaysetting. Thus, the 2 checking relays R35 and R36 together ascertainwhether the quantity of liquid called for by the perforations is presentin the related tube.

Checking the amount in the tens digit.As the tens digit column passesthe brushes CB, 2. circuit is traceable as before to the common contactroller 33 (Fig. 8) from which it passes to the 2 perforation (for theexample in Fig. 4), thence through connection III (Fig, 80), contactsR3'Ia in the 2 position which are closed at the 2 time in the cycle bymagnet R31 which is energized in parallel with the 2 magnet R33, througha similar commutator and brush structure 51, 58, '12. From contacts R37athe circuit branches 9 1W 12 contact R32e and lower contacts R32! bothclosed at this time, wires IIlI, I04 in parallel (Fig, 8d), thence inparallel through the contactors 23b, 22b and 24b in both of the 10 ouncetubes, Wires I00, I03 in parallel (Fig. contact R21d, wire 99, lowercontacts R320, relay magnet R38, to line 65. The circuit from wire I03follows a parallel path to contacts R280, R2'Ie, wire I03, lower contactR32d, relay magnet R38, to line 65. Contacts R38a, R39a close to providea holding circuit through the lower contacts R320 and R32d.

Thus, if both 10 ounce tubes contained the proper quantity when the 2hole is sensed, both relay magnets R38 and R39 will be energized.Accordingly, for ingredient I employing three tubes, four checkingrelays R35, R36, R38 and R39 associated therewith are energized toindicate that the quantity called for by the perforations is containedin the tubes. As will be explained later, it is necessary for these fourmagnets to be energized in order that the machine may continue itsoperation, and provision is made so that, where any tube contained nomeasured quantity, its related checking relay must nevertheless beenergized. This can be explained by assuming, for example, that noamount of ingredient I is called for, in which case the three relatedcolumns in Fig. 4 will be perforated in their zero positions.

Checking the fractional column for zero quantity.Tracing the circuit atthe zero checking time, a circuit is traceable from the wire I06 (Fig.8a), wire I0'I, upper contacts Rl9d, upper contacts RI8e, contacts RIIc,zero contacts R3312 closed at the zero time, relay magnet R35 to line65.

Checking the units digit column for zero quantity.-At the same time uponclosure of cam contacts CH5 (Fig. 8a) (timed to close at zero) a circuitis traceable from line 60, card lever relay con-' tacts R340 now closed,contacts CH5, contacts R2311, R2212, R2Id, R20d closed for a zerosetting of the units and digit relays, wire II3, contacts Rl9e, RI8g,RlIe, wire II4, wire 9i, lower contacts R32a, magnet R36, to line 65. Inthis manner at zero time a test is made to determine that the relays areset at zero and, since as previousl explained the intake valve of thetube cannot be operated unless the relays are set at a significantvalue, the checking of the relays at this time for zero setting is anindication that the related tube has not been operated and does notcontain a significant quantity.

Checking the tens digit column for zero quantitg.In the same manner acircuit is traceable from line 60 (Fig. 80), through checking card levercontacts R34d, contacts CI-I5a timed the same as contacts CH5, uppercontacts R211, lower contacts R28cl (closed for zero settinghwire 99,lower contacts R32c, relay R38 to line 65. A parallel circuit is alsotraceable from the contacts R2 If, to contacts R2'Ig, lower contactsR28e, wire I03, lower contacts R32d, relay magnet R39, wire 82, to line65. Thus, with several relays set to represent a zero quantity for theingredient, the four checking relays are energized as explained.

Discharging the measured quantities Contacts R351), R361), R38b, R39bare closed when their respective checking relay magnets are energized.In series with these four contacts are shown four others generallydesignated R40b which are controlled by relay magnets generallydesignated R40 which in turn are controlled by circuit connections for aset of tubes handling another ingredient, for example, ingredient II.Where more ingredients are involved, additional checking contacts areincluded in series so that, when all ingredients or quantities have beenchecked, a circuit is completed through the series contacts when camcontacts CH3 close at the time indicated in Fig. 5, which is traceablefrom line 60, through contacts CH3 (Fig. 8) in series through thechecking relay contacts, relay magnet RM, to line 65.

Magnet RM closes its contacts RMb completing a circuit from line 65,contacts Rdib, wire H (Figs. 8a, 8b), thence in parallel through alldischarge valve solenoids 19 to line 60. This causes all the valves toopen and the measured quantities in the various tubes l2 see Fig. 7)pass through the lines l5, IE to the common receptacle H, where theingredients are combined. Contacts R41 (1 (Fig. 8) are closed to providea holding circuit from line 65, magnet R4l, contacts Rlia, contactsR41), which are closed at this time, to line 60. Closure of contacts Rlbis due to the energization of relay magnet R4 which, as previouslyexplained, is held energized through the contacts R3a which are closedas long as intake valve solenoids [4 (Fig. 8) are not energized.

Reading the next following card The first card sensed continues throughthe last pair of feedrollers into the discharge hopper and, near the endof the cycle, the cam contacts CR! (Fig. 8) close, completing a circuitfrom line 60, contacts CRI, contacts R48a, contacts R Hc, magnet R2, andthe read clutch magnet SM in parallel to line 65. This initiates a cycleof operations during which the second card passes the reading brushesSB, and the S contacts operate, all of which contacts SI, Sla (Figs. 8aand 80) open to drop the holding circuits for the quantity rela magnets,so that a new setting may be made thereon as the card passes the sensingbrushes. Contacts Slb (Fig. 8a) open to drop the holding circuit for therelay R35. Near the end of the passage of the first card past thesensing brushes, the contacts CH4 open to deenergize the relay magnetR32, and its several contacts shift to break the holding circuits forthe checking relay magnets R38. R39, and R36.

At the end of the cycle during which the second card passes the brushesSB, the card feed mechanism comes to rest, and at this time thereceptacle I! Fig. '7) may be removed and replaced by another. Also,during this reading cycle at the 2 time relay magnet R8 becomesenergized at the 1 time (Fig. 8a) and closes its contacts R80 (Fig. 8),thereby momentarily energizing relay magnet R42, througha circuit fromline 65, relay magnet R42, contacts R80, wire I I6 contacts Rdb to line60. Magnet R42 closes its con- .tacts R42b, establishing a holdingcircuit for the magnet. After the card feeding mechanism has come torest, the operator repeats the operation of closing the start contacts83 (Figs. 8b, 8d) so that one or more of the contacts R3a (Fig. 8) open,which breaks the holding circuit to the discharge valve solenoids andalso for the magnet R42. The purpose of the latter is to prevent repeatoperation of the reading clutch after the first.

It will be apparent that, if the several checking relay magnets are notenergized, the circuit to the discharge valve solenoid is not completedand operations are suspended, serving as an indication that there hasbeen a disagreement which may be due to a number of mechanical 14 causesin the machine and as a. warning to the operator to inspect theapparatus. In Fig. 8b there is provided a pair of reset kcy contacts II!which the operator may depress to directly energize the discharge valvesolenoids l9 tdclear the tubes and the card may then be again runthrough the machine with the operations repeated. There is thus providedan automatic operating record controlled dispensing apparatus, in whichthe selected quantities are separately measured and checked beforebeingcombined in a common receptacle and, if for any reason thequantities called for and the quantities selected are not in accord,operations are suspended before the ingredients are combined, so thatwhere they are ultimately combined, there is an assurance they arecombined in proper selected proportion.

While there have been shown and described and pointed out thefundamental novel features of the invention as applied to a singlemodification, it will be understood that various omissions andsubstitutions and changes in the form and details of the deviceillustrated and in its operation may be made by those skilled in the artwithout departing from the spirit of the invention. It is the intentiontherefore to be limited only as indicated by the scope of the followingclaims.

What is claimed is:

1. In a dispensing apparatus having a plurality of supply hopperscontaining different substances, a plurality of intermediate stations,each for receiving one of said substances from the supply hoppers, adischarge station for receiving the substances from the intermediatestations, means for controlling the movement of the substances betweenthe supply hoppers and the intermediate stations and means forcontrolling the movement of the substances between the intermediatestations and the discharge station, in combination with means forsensing a record card for designations representing quantities of aplurality of substances, means controlled by said sensing means forcausing the first named controlling means to effect movement of thedesignated quantities of said designated plurality of substances intothe related intermediate stations, a second means for sensing saidrecord. means controlled thereby for checking the selected quantities ofsubstances for conformity with the record designations, and meanscontrolled thereby when conformity is found for causing operation ofsaid second named controlling means to cause movement of the selectedsubstances to said discharge station.

2. In an apparatus of the class described, a dispensing system having aplurality of compartments, a stack of record cards each bearing'desig-inations representing commodities to be dispensed. w

a pair of record sensing stations past which the cards are fed in turn,means for feeding a card past the first sensing station. meanscontrolled by said first sensing station for controlling the operationof the dispensing apparatus to dispense commodities into thecompartments in accordance with the designations on the card, meanseffective when all selected commodities have been dispensed for causingthe card to feed past the second sensing station, means controlled bysaid second sensing station for checking the commodities in thecompartments for agreement with the designations on the card, and meanscontrolled by said checking means for discharging the commodities fromsaid compartments only when they are correct.

3. In a dispensing apparatus having a supply hopper containing asubstance, an intermediate station for receiving said substance from thesupply hopper, a discharge station for receiving the substance from theintermediate station, means for controlling the movement of thesubstance between the supply hopper and the intermediate station andmeans for controlling the movement of the substance between theintermediate station and the discharge station, in combination withmeans for sensing a record card for designations representing quantitiesof substance, means controlled by said sensing means for causin thefirst named controlling mean to efiect movement of the designatedquantity of said substance into the intermediate station, a second meansfor sensing said record card, means controlled by said second sensingmeans for checking the selected quantity of substance for conformitywith the record designations, and means controlled by said checkingmeans when conformity is found for causing operation of said secondnamed controlling means to cause movement of the selected substance tosaid discharge station.

4. In a dispensing apparatus, a supply hopper, a measuring hopper, adischarge hopper, means settable in accordance with any one of aplurality of amounts, devices controlled by said settable means forselecting and feeding the set amount from the supply hopper to themeasuring hopper, said measuring hopper being arranged to retain theamount fed thereto for a time interval, further devices controlled bysaid settable means and operative during the retention of the measuredamount for verifying the selected amount, means controlled by saidmeasuring means for initiating and effecting an operation of saidfurther devices, and means controlled by said verifying means, only whenthe amount selected is correct, for causing the selected amount to bedischarged to the discharge hopper.

5. In a dispensing apparatus, a fluid reservoir, a meaasuring tube, adevice settable in accordance with an amount of fluid, mechanismcontrolled thereby for causing the represented amount of fluid to flowfrom the reservoir to said measuring tube, said tube being arranged toretain the fluid therein, separate automatically operating mechanismoperative after entry of the selected amount into said tube and duringretention thereof for verifying the correctness thereof, meanscontrolled by said first named mechanism for initiatin and effecting anoperation of said verifying mechanism, a discharge container, and meanscontrolled by said verifying mechanism for causing the fluid in the tubeto be discharged into said container only when the quantity thereof iscorrect.

6. In a dispensing apparatus, a fluid reservoir, a measuring tube, adevice settable to correspond to any one of a number of selected levelsof the tube, means for causing fluid to flow from the reservoir into thetube, means controlled by said device when the fluid in the tube reachessaid selected level for terminating said flow, separate mechanismoperative after termination of said flow for thereafter checking thelevel of the fluid in the tube with the settable device, meanscontrolled by said terminating means for initiating and effectin anoperation of said checking mechanism, and means controlled thereby whenin agreement for causing discharge of the fluid from the tube.

7. In an apparatus of the class described, selectively operabledispensing mechanism, devices settable in accordance with commoditiesand quantities to be dispensed, mechanism controlled thereby foractuating said dispensing mechanism toseparately and concurrently conveyeach represented commodity in the required quantity to a checkingstation, separate means for each commodity for ascertaining when theconveying op eration for the related commodity is'terminated, devicescontrolled jointly by all the ascertaining mean and automaticallyoperative upon termination of conveying of all commodities for checkingthe commodities and their quantity at said station with said settabledevices, means for conveying the selected commodities to a deliverypoint, and means controlled by said checking devices for rendering saidconveying means efl'ective only upon ascertaining that all of theselected commodities and their quantities are correct.

8. In an apparatus of the class described, selectively operabledispensing mechanism, a record containing designations representingcommodities and variable quantities thereof, mechanism controlled bysaid record for actuating said dispensing mechanism to separately andconcurrently convey each represented commodity in the required quantityto a checking station, separate means for each commodity forascertaining when the conveying operation for the related commodity isterminated, devices controlled jointly by all the ascertaining means andautomatically operative upon termination of conveying for checking theconveyed commodities and their quantity with the record, means forconveying the selected commodities to a delivery point, and meanscontrolled by said checking devices for rendering said conveying meanseffective only upon ascertaining that all of the selected commoditiesand their quantities are correct.

9. In a mechanical dispensing system provided with selective controlapparatus for selectively operating the dispensing system toconcurrently deliver different wanted commodities to a check ingstation, said quantities being retained thereat, preset devices adjustedto represent the wanted commodities, means for ascertaining whendelivery of all commodities is completed, mechanism controlled by saidpreset devices and said ascertaining means when all commodities aredelivered for automatically checking the commodities at said checkingstation, and delivery means controlled thereby and operative to deliverythe commodities from the checking station to a destination point onlywhen all the commodities dispensed are correct.

10. In an apparatus of the class described, a commodity supply source, adevice settable in accordance with selected commodities in variablequantities, a checking station, mechanism controlled by said settabledevice for conveying the selected commodities in the selected quantitiesto the checking station, devices at the station for maintaining thedifferent commodities separate from one another, means for ascertainingwhen delivery of all commodities is completed, means controlled by thesettable devices and said ascertaining means when all commodities aredelivered for checking the commodities at the checking station forcorrectness of selection and correctness of quantity, and meanscontrolled by the checking means for discharging the commodities to acommon receiver only when all the commodities are correct.

11. In an apparatus of the class described. a

plurality of commodity supply sources, a checking station having aseparate compartment for each possible commodity, control mechanism fordispensing selected commodities and conveying the same to the relatedcompartments, means for discharging the commodities from saidcompartments to a common container, means settable in accordance withwhich compartments are to receive commodities and which are not,mechanism at said checking station cooperating with said settable meansfor ascertainin the presence of selected commodities in their respectivecompart-' ments and the absence of commodities in the remainingcompartments, and means controlled thereby for rendering saiddischarging means effective only when the relation is in accordance withthe setting.

12. In a fluid dispensing system, a fluid reservoir, a receivingcompartment, a fluid level indicator associated with said compartment, adevice settable in accordance with a selected quantity of fluid, meanscontrolled by said settable device only when it is set to represent asignificant quantity for initiating the flow of fluid into thecompartment, means controlled by said indicator when the quantity offluid equals the set quantity for terminating the-flow, further meanseffective a predetermined period after termination of the flowforchecking the quantity of fluid in the compartment with the settablequantity through said indicator, means controlled by said terminatingmeans for initiating and effecting an operation of said checking means,and means controlled by said checking means for discharging the fiuidfrom the compartment.

13. In a dispensing system, a supply source, a receiving compartment, aquantity indicator associat-ed with said compartment to indicate thequantity of a commodity therein, a device settable in accordance with aselected quantity of a commodity, means controlled jointly by saidsettable device when it is set to represent a significant quantity andby said indicator when it is set to represent a predetermined quantity,for initiating the transfer of the commodity into the compartment, meanscontrolled by said indicator when the quantity entered equals the setquantity for terminating the transfer, further means eifective aftertermination of said transfer for checking the quantity of the commodityin the compartment with the settable quantity through said indicator,and means controlled by said checking means for discharging thecommodity from the compartment.

14. In a dispensing system, a supply source, an intermediatedestination, a final destination, a first conveying means between thesupply source and said intermediate destination, a second conveyingmeans between the intermediate and final destinations, a control devicefor each conveying means, devices settable in accordance with a desiredquantity of the commodity, means for operating the control device of thefirst conveying means to cause conveyance of a quantity of commodity tothe intermediate destination, means at said intermediate destinationresponsive to the presence of commodity thereat, stopping means jointlycontrolled by said responsive means and said settable devices foroperating the control device of the first conveying means to interruptconveyance of commodity, checking means jointly controlled by saidresponsive means and said settable devices for operating the controldevice of the second conveying means only when the quantity of commodityat said intermediate destination agrees with the quantity set up, andmeans controlled by said stopping means for initiating and effecting anoperation of said checking means.

15. In a dispensing apparatus having a supply hopper containing asubstance, an intermediate station for receiving said substance from thesupply hopper, and means for controlling the movement of the substancebetween the supply hopper and the intermediate station in combinationwith means settable to represent a quantity of substance to be movedfrom the supply hopper to said intermediate station, means at thestation to indicate the quantity of substance at the station, means fortesting said settable means to ascertain whether it is set to representa significant quantity,. further means for testing said indicating meansat the station, means jointly controlled by both said testing means forrendering the said controlling means effective to initiate movement ofsubstance to the station only when the settable means represents asignificant quantity and the station contains no substance, and meanscontrolled by the settable means for subsequently disabling saidcontrolling means when the quantity set up has been moved to saidstation.

CLARENCE R. MANNING.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Date

